Genotypic Control of Chromocentres in Radish (Raphanus SativusL. Var.RadicolaPersoon)

Abstract

Mean number of chromocentres in the interphase nuclei has been studied in two inbred lines of radish (Raphanus sativus L. var. radicola Persoon), their F₁ hybrid and the original population. The inbred lines showed a significantly higher mean of chromocentres in the interphase nuclei than the original population, suggesting more heterochromatinization in the former. Mean number of chromocentres in the nuclei is restored in the plants of F₁ interlinear hybrid. A genotypic control of chromocentres has been proposed in radish.